5 Most Profitable Cash-Only Businesses To Avoid Taxes

4. Flea Markets

Flea markets can be a great source of income if executed in the right manner. The National Flea Market Association in the United States estimates that more than 1,100 flea markets in the country generate $30 billion in sales each year. More than 150 million customers visit these markets annually, where business is conducted mostly in cash-only. The association has said it stands against attempts to legislate the markets. The US government recognizes the impact of flea markets and their sales are included in the GDP calculated each year. 

Usually, for the 2.25 million vendors who operate in flea markets, a booth fee is charged by the local authority in charge of the market. These fees depend on the size and location of the booth. Some markets provide staff for booths, so that the owners are not required to man the booth themselves. However, some markets do require the presence of the owner at the booth for a set period each year in order to maintain business integrity.